具有主动磁控的重力梯度稳定系统的研究

The Study of Active Magnetic Control System for Gravity Gradient Small Satellite

介绍了主动磁控太阳同步轨道遥感小卫星控制系统的分析与设计，其中包括卫星广义动力学模型的建立、磁偶极子分配与生成以及满足控制能限要求的系统分析与设计等。最后，通过数学仿真给出稳定系统的性能指标。仿真结果表明，对于具有非线性、变系数和交叉耦合的广义飞行器动力系统，主动磁控加重力梯度稳定可使卫星姿态达到优于５度的对地指向精度。

In this paper, the analysis and design of the control system of active magnetics control small satellite are presented.The foundation of the generalized dynamic equation, the distribution of the magnetic poles and analysis of this limited system are discussed.Finally, the performance of this stable system is given through mathematics simulation.The result indicated that this method can guarantee the pointing accuracy better than 5 degree for this nonlinear, variable coefficient and cross coupling dynamics system.